This is a routine passive stake amendment within the Vanguard family of entities. No change in aggregate Vanguard ownership is indicated. Monitor for any future conversion to Schedule 13D, which would signal a shift to activist intent.
Price Chart
Executive Summary
Vanguard Capital Management LLC filed an amendment to its Schedule 13G, disclosing a passive stake of 8,226,616 shares (4.91%) in Rubrik, Inc. as of September 30, 2026. This is a new filing for Vanguard Capital Management; prior 13G filings for Rubrik were by Vanguard Portfolio Management LLC and other Vanguard entities, so this represents a reallocation within the Vanguard group rather than a change in aggregate Vanguard ownership.
Key Financial Metrics
Key Facts
- Vanguard Capital Management LLC reports beneficial ownership of 8,226,616 shares of Rubrik, Inc. Class A Common Stock.
- The stake represents 4.91% of shares outstanding as of September 30, 2026.
- The filing is an amendment to Schedule 13G, indicating passive investment intent under Rule 13d-1(b).
- The filing entity is Vanguard Capital Management LLC, a Pennsylvania limited liability company classified as an Investment Adviser (IA).
- The filing includes shares held by Vanguard funds and managed accounts over which Vanguard Capital Management exercises dispositive power.
Financial Impact
Stake valued at approximately $1.39 billion based on 8,226,616 shares at the market cap of $28.2B (4.91% of shares outstanding).
Risk Factors
- No material risks identified; this is a standard passive investment disclosure.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0002100119-26-001667 |
| Document: 0002100119-26-001667-index.html | 0002100119-26-001667 |
| Document: 0002100119-26-001667.txt | 0002100119-26-001667 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G/A | $120.91 | awaiting T+60 | awaiting T+60 | $124.15 (+2.68%) |
Oct 30, 2026 2d ago | SC 13G/A | $119.64 | awaiting T+60 | awaiting T+60 | $124.15 (+3.77%) |
Oct 23, 2026 9d ago | Institutional Cluster | $128.74 | awaiting T+60 | awaiting T+60 | $124.15 (−3.57%) |
Oct 12, 2026 20d ago | Institutional Cluster | $120.01 | awaiting T+60 | awaiting T+60 | $124.15 (+3.45%) |
Sep 25, 2026 5w ago | 144 | $113.09 | awaiting T+60 | awaiting T+60 | $124.15 (−9.78%) |
Sep 17, 2026 6w ago | Insider Cluster | $106.71 | awaiting T+60 | awaiting T+60 | $124.15 (+16.34%) |
Sep 10, 2026 7w ago | Insider Cluster | $86.65 | awaiting T+60 | awaiting T+60 | $124.15 (+43.28%) |
Sep 3, 2026 8w ago | Insider Cluster | $93.67 | awaiting T+60 | awaiting T+60 | $124.15 (+32.54%) |
Aug 28, 2026 9w ago | 3 | $93.04 | awaiting T+60 | awaiting T+60 | $124.15 (+33.44%) |
Aug 5, 2026 12w ago | Insider Cluster | $84.60 $124.15 | ▲ +46.75% | ▲ +48.42% | $124.15 (+46.75%) |
US Market Status
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